Jackie Gleason "American Scene Magazine" reruns being shown on WBXZ Channel 56.4*

I spoke to someone on sitcomsonline. They claimed that they are showing the hour long versions. Here is the thread.

Jackie Gleason ASM reruns being shown on WBXZ 56.4 in Buffalo, NY - Sitcoms Online Message Boards - Forums

WBXZ Channel 56.4 shows basically old shows that are in the PD or are low cost. Are any episodes of the Jackie Gleason ASM in the public domain? I would think that this station acquiring non public domain episodes would be cost prohibitive for them.